Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh gia de snippets" » "danh gia de snippets", "anh giao de snippets", "anh bia de snippets", "anh gia ve snippets", "anh ga de snippets", "anh gia do snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("anh gia de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh gia de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh gia de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh gia de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.